package cn.edu.ctbu.labtest.webapi;


import cn.edu.ctbu.labtest.domain.Student;
import cn.edu.ctbu.labtest.service.StudentService;
import core.PageUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;

import org.springframework.data.domain.Sort;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("webapi/student")
public class StudentRestController {

    @Autowired
    private StudentService studentService;

    /**
     * 读取的url:/webapi/student/list
     * @return
     */
    @GetMapping("list")
    public List<Student> getAll(){


        List<Student>students= studentService.findAll();
        return students;
    }


    /**
     * 读取的url:/webapi/student/get/id
     * @return
     */
    @GetMapping("/get/{id}")
    public Student get(@PathVariable Integer id){

        Student student=studentService.getById(id);
        //student.setPassword("");

        return student;
    }

    /**
     * 分页，读取全部内容
     * @return
     */
    @GetMapping("/getbypage")
    public PageUtils getByPage(@RequestParam(value = "page",defaultValue = "0")Integer page,
                               @RequestParam(value = "size",defaultValue = "10")Integer size){

        /**
         * 按id排倒序
         */
        Sort sort=Sort.by("id").descending();

        Pageable pageable=PageRequest.of(page,size,sort);

        Page<Student>studentPage=studentService.findAll(pageable);

PageUtils pageUtils= new PageUtils(studentPage.getContent(),studentPage.getTotalElements());
        return pageUtils;
    }


    /**
     * 新增学生的方法 webapi/student/insert
     * @param student
     * @return
     */

    @PostMapping("insert")
    public  Student insert(Student student){


        Student student1=studentService.insert(student);

        return student1;
    }
    /**
     * 更新学生的方法 webapi/student/update
     * @param student
     * @return
     */

    @PutMapping("update")
    public  Student update(Student student){
        //读取旧的数据
//        Student oldstudent=studentService.getById(student.());
////
////        if(StringUtils.isEmpty(oldstudent.getPassword())){
////            //没有新密码就用旧密码
////            oldstudent.setPassword(oldstudent.getPassword());
////        }
        student =studentService.update(student);

        return student;
    }

    /**
     * 删除学生的方法 webapi/student/delete
     * @param id
     * @return
     */

    @DeleteMapping("/delete/{id}")
    public  void delete(@PathVariable Integer id){


        studentService.delete(id);

    }
}
